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February 6th, 2025 15:01
General Guidelines for Acceptable Discard Rates on Port-Cannel trunk interfaces between two Dell s4048ON
I have a discarded packet rate of .018% on a Port-Cannel to and from Dell s4048ON. Is that normal? Please provide a good source. I used ChatGPT and it said its normal but id like a legitimate white paper or dell document that can confirm.
I looked at all the transceivers and they all have the same input discarded rate. (Was trying to narrow out one interface in the Port-Channel)
Check out my configs
Dell_4048_SW-1#sho int po100
Port-channel 100 is up, line protocol is up
Created by LACP protocol
Description: Dell_4048_SW-2-80-Gi_Aggregate
Hardware address is e4:f0:04:59:eb:c3, Current address is e4:f0:04:59:eb:c3
Interface index is 1258291712
Minimum number of links to bring Port-channel up is 100
Internet address is not set
Mode of IPv4 Address Assignment : NONE
DHCP Client-ID :e4f00459ebc3
MTU 9216 bytes, IP MTU 9198 bytes
LineSpeed 80000 Mbit
Members in this channel: Te 1/10(U) Te 1/11(U) Te 1/12(U) Te 1/13(U) Te 2/10(U) Te 2/11(U) Te 2/12(U) Te 2/13(U)
ARP type: ARPA, ARP Timeout 04:00:00
Queueing strategy: fifo
Input Statistics:
340501302 packets, 210109393087 bytes
16054 64-byte pkts, 67503824 over 64-byte pkts, 144290919 over 127-byte pkts
9654111 over 255-byte pkts, 14242692 over 511-byte pkts, 104793702 over 1023-byte pkts
106115 Multicasts, 44095 Broadcasts, 340351092 Unicasts
0 runts, 0 giants, 0 throttles
0 CRC, 0 overrun, 59748 discarded
Output Statistics:
258062256 packets, 75323745859 bytes, 0 underruns
7218210 64-byte pkts, 66825437 over 64-byte pkts, 146052127 over 127-byte pkts
6393463 over 255-byte pkts, 15559129 over 511-byte pkts, 16013890 over 1023-byte pkts
1062890 Multicasts, 372093 Broadcasts, 256627273 Unicasts
0 throttles, 0 discarded, 0 collisions, 0 wreddrops
Rate info (interval 299 seconds):
Input 349.00 Mbits/sec, 103614 packets/sec, 0.46% of line-rate
Output 195.00 Mbits/sec, 91848 packets/sec, 0.26% of line-rate
Time since last interface status change: 92w2d14h
------------------------------
Dell_4048_SW-1
interface Port-channel 100
description Dell_4048_SW-2-80-Gi_Aggregate
no ip address
mtu 9216
switchport
no shutdown
interface TenGigabitEthernet 1/10
description Dell_4048_SW-2_1/10
no ip address
mtu 9216
!
port-channel-protocol LACP
port-channel 100 mode active
no shutdown
!
interface TenGigabitEthernet 1/11
description Dell_4048_SW-2_Te1/11
no ip address
mtu 9216
!
port-channel-protocol LACP
port-channel 100 mode active
no shutdown
!
interface TenGigabitEthernet 1/12
description Dell_4048_SW-2_Te1/112
no ip address
mtu 9216
!
port-channel-protocol LACP
port-channel 100 mode active
no shutdown
!
interface TenGigabitEthernet 1/13
description Dell_4048_SW-2_Te1/13
no ip address
mtu 9216
!
port-channel-protocol LACP
port-channel 100 mode active
no shutdown
!
interface TenGigabitEthernet 2/10
description Dell_4048_SW-2-Te2/10
no ip address
mtu 9216
!
port-channel-protocol LACP
port-channel 100 mode active
no shutdown
!
interface TenGigabitEthernet 2/11
description Dell_4048_SW-2-Te2/11
no ip address
mtu 9216
!
port-channel-protocol LACP
port-channel 100 mode active
no shutdown
!
interface TenGigabitEthernet 2/12
description Dell_4048_SW-2-Te2/12
no ip address
mtu 9216
!
port-channel-protocol LACP
port-channel 100 mode active
no shutdown
!
interface TenGigabitEthernet 2/13
description Dell_4048_SW-2-Te2/13
no ip address
mtu 9216
!
port-channel-protocol LACP
port-channel 100 mode active
no shutdown
------------------------------
Dell_4048_SW-2
Dell_4048_SW-2#sho int po100
Port-channel 1 is up, line protocol is up
Created by LACP protocol
Description: To_Dell_4048_SW-1
Hardware address is 64:00:6a:f5:62:82, Current address is 64:00:6a:f5:62:82
Interface index is 1258291712
Minimum number of links to bring Port-channel up is 100
Internet address is not set
Mode of IPv4 Address Assignment : NONE
DHCP Client-ID :64006af56282
MTU 9216 bytes, IP MTU 9198 bytes
LineSpeed 80000 Mbit
Members in this channel: Te 1/10(U) Te 1/11(U) Te 1/12(U) Te 1/13(U) Te 2/10(U) Te 2/11(U) Te 2/12(U) Te 2/13(U
ARP type: ARPA, ARP Timeout 04:00:00
Queueing strategy: fifo
Input Statistics:
366961480 packets, 105252650769 bytes
9023039 64-byte pkts, 80722480 over 64-byte pkts, 229657890 over 127-byte pkts
7784582 over 255-byte pkts, 19039144 over 511-byte pkts, 20734345 over 1023-byte pkts
1204987 Multicasts, 429082 Broadcasts, 365327410 Unicasts
0 runts, 0 giants, 0 throttles
0 CRC, 0 overrun, 64184 discarded
Output Statistics:
458971749 packets, 256144809207 bytes, 0 underruns
18214 64-byte pkts, 81877881 over 64-byte pkts, 227887950 over 127-byte pkts
11540365 over 255-byte pkts, 17500115 over 511-byte pkts, 120147224 over 1023-byte pkts
120365 Multicasts, 49881 Broadcasts, 458801503 Unicasts
0 throttles, 0 discarded, 0 collisions, 0 wreddrops
Rate info (interval 299 seconds):
Input 244.00 Mbits/sec, 105628 packets/sec, 0.33% of line-rate
Output 370.00 Mbits/sec, 115082 packets/sec, 0.49% of line-rate
Time since last interface status change: 92w2d14h
interface Port-channel 1
description To_Dell_4048_SW-1
no ip address
mtu 9216
switchport
no shutdown
interface TenGigabitEthernet 1/10
description Dell_4048_SW-1_1/10
no ip address
mtu 9216
!
port-channel-protocol LACP
port-channel 100 mode active
no shutdown
!
interface TenGigabitEthernet 1/11
description Dell_4048_SW-1_Te1/11
no ip address
mtu 9216
!
port-channel-protocol LACP
port-channel 100 mode active
no shutdown
!
interface TenGigabitEthernet 1/12
description Dell_4048_SW-1_Te1/112
no ip address
mtu 9216
!
port-channel-protocol LACP
port-channel 100 mode active
no shutdown
!
interface TenGigabitEthernet 1/13
description Dell_4048_SW-1_Te1/13
no ip address
mtu 9216
!
port-channel-protocol LACP
port-channel 100 mode active
no shutdown
!
interface TenGigabitEthernet 2/10
description Dell_4048_SW-1-Te2/10
no ip address
mtu 9216
!
port-channel-protocol LACP
port-channel 100 mode active
no shutdown
!
interface TenGigabitEthernet 2/11
description Dell_4048_SW-1-Te2/11
no ip address
mtu 9216
!
port-channel-protocol LACP
port-channel 100 mode active
no shutdown
!
interface TenGigabitEthernet 2/12
description Dell_4048_SW-1-Te2/12
no ip address
mtu 9216
!
port-channel-protocol LACP
port-channel 100 mode active
no shutdown
!
interface TenGigabitEthernet 2/13
description Dell_4048_SW-1-Te2/13
no ip address
mtu 9216
!
port-channel-protocol LACP
port-channel 100 mode active
no shutdown
DELL-Young E
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February 27th, 2025 05:00
Hello @Wan_Whisperer
Thanks for choosing Dell and welcome to our community.
First of all could you check this out? https://www.dell.com/community/en/direct-messaging
Also make sure your firmware is 9.14.2.23.
https://www.dell.com/support/manuals/en-tt/dell-emc-os-9/s4048-on-9.14.2.5-cli-pub/show-interfaces?guid=guid-fa209ab8-de11-451a-8d64-74aa8fdf62d7&lang=en-us
“
I’m thinking this it might be the reason why. There is no CRC errors (physical cable or SFP ) either.
Let us know if you have any additional questions.